With the progress of science and technology and change of market demand, add it under the request for ' the basic telecommunication protocol ' (Basic Telecom Agreement ) of World Trade Organization (WTO ), requiring various countries to open their domestic telecommunication markets in the world, telecommunication industry liberalization , publicly-owned undertaking privatization have already been an inevitable result. So, there are open pressures outside , under the popular double strength catalysis of opening the demand inside, the speeds with open telecommunication industry of the countries all over the world are very fast. Chinese telecommunication Company finish privatization is already different from the past era that engage in without competition 2005, the telecommunication industry is facing so fierce market competition, no matter resource distribution , output are being made up or the scale is being adjusted, all face the great challenge. In order to meet the market choosing the customer as the direction , are managing and must plan with the efficiency of management and " opening " valid management " actively ", just have a chance of struggle for existence. Research this serve for Chinese telecommunication firm network, use the materials to wrap up and hold analytic approach DEA way in place with a net, regard ' staff's number ' , ' the funds budget ' , ' the amount of the assets ' as and invest the key element. With ' customer count ' , is it is it count to inform to explain always , ' total obstacle count ' , as the key element of the output ' satisfaction ' another, collecting Chinese telecommunications from January of 2005 to March of 2006, privatization is during seven months from beginning to end, 27 , such as Taiwan , Penghu and Jinmen ,etc. operate obstacle of customer of the unit and explain and inform the materials, assess the service performance appeared of customer satisfaction while investing, via studying the income result, probe into privatization to the company's firm network communication service quality of Chinese telecommunication, the satisfaction experienced actually, and firm network communication serves the business efficiency between three middle and southern districts of the north of quality wholly, do a analysis discussion . This result of study is found: 1different areas and attribute customer group, to the service quality and satisfaction offered of Chinese telecommunication company, its consent level experiencing the degree actually has difference of showing, it is the most efficient with the center district among them, it is the south occupy time is the north again. 2under the circumstances that telecommunication liberalization operates continuously, the private telecommunication industry of our country person can be expected to shrink with the Chinese disparity of telecommunications gradually, and more efficient than before privatization after Chinese telecommunication privatization, and can be expected to be more efficient in the telecommunication market competition in the future. Propose improving the service item on negative appraisal actively, could maintain its competition advantage 3Participate in comparing and assess 27 decision units, at returns to scale not regular it is the for having 66% the above 0.8 in efficiency in unit in decision ,Taibei district , the pair not west efficiency for DMU 1 with, hit by Li, Tainan, Taitung decision unit of 5 pieces. 4 is shown that CRS (the regular returns to scale ) rises by 1% each time, SATIS (satisfaction ) is reduced by 0.14 by the result of study, have 1% statistics dominance (confidence level). 5 shown a person by the result of study to prove too , SATIS (satisfaction ) rises by 0.01, but does not have dominance . As the budget rises by 1%, SATIS (satisfaction ) rises by 0.01, does not also have dominance .